I just finished reading Issue #21 of Chip Chat. As always, Doug provides a detailed background of the chips he has for sale or auction. There is information on the casinos and their owners. His knowledge of chips (molds, manufacturers, usage,etc.) is extensive. If you're a collector with an interest in obsolete chips, especially Nevada and California chips, then the best advice I have would be to subscribe to Chip Chat. It's $3 an issue and Doug "promises" six issues a year. Do yourself a real favor and buy all the back issues. I think Doug will send you a free issue before you have to commit to the $18 for six issues. Doug's number is (619) 296-3502.